Tools & Wizards About Us
rcsb.org screenshot

Report Summary

  • 52

    Performance

    Renders faster than
    69% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

rcsb.org

RCSB PDB: Homepage

Page Load Speed

895 ms in total

First Response

47 ms

Resources Loaded

656 ms

Page Rendered

192 ms

rcsb.org screenshot

About Website

Welcome to rcsb.org homepage info - get ready to check RCSB best content for China right away, or after learning these important things about rcsb.org

As a member of the wwPDB, the RCSB PDB curates and annotates PDB data according to agreed upon standards. The RCSB PDB also provides a variety of tools and resources. Users can perform simple and adva...

Visit rcsb.org

Key Findings

We analyzed Rcsb.org page load time and found that the first response time was 47 ms and then it took 848 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

rcsb.org performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

25/100

25%

SI (Speed Index)

Value5.5 s

54/100

10%

TBT (Total Blocking Time)

Value390 ms

69/100

30%

CLS (Cumulative Layout Shift)

Value0.119

85/100

15%

TTI (Time to Interactive)

Value8.9 s

35/100

10%

Network Requests Diagram

rcsb.org

47 ms

www.rcsb.org

74 ms

js

71 ms

search-data

51 ms

react-search.js

129 ms

Our browser made a total of 108 requests to load all elements on the main page. We found that 12% of them (13 requests) were addressed to the original Rcsb.org, 87% (94 requests) were made to Cdn.rcsb.org and 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (241 ms) relates to the external source Cdn.rcsb.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 289.4 kB (6%)

Content Size

4.9 MB

After Optimization

4.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rcsb.org main page is 4.9 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 4.7 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 69.6 kB

  • Original 89.0 kB
  • After minification 88.5 kB
  • After compression 19.4 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 69.6 kB or 78% of the original size.

Image Optimization

-5%

Potential reduce by 219.6 kB

  • Original 4.7 MB
  • After minification 4.5 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. RCSB images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 12 B

  • Original 60.1 kB
  • After minification 60.1 kB
  • After compression 60.1 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 195 B

  • Original 26.7 kB
  • After minification 26.6 kB
  • After compression 26.5 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Rcsb.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 16 (15%)

Requests Now

104

After Optimization

88

  • Images
  • JavaScript
  • CSS

The browser has sent 104 CSS, Javascripts, AJAX and image requests in order to completely render the main page of RCSB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rcsb.org

rcsb.org

47 ms

www.rcsb.org

www.rcsb.org

74 ms

js

js

71 ms

search-data

search-data

51 ms

react-search.js

react-search.js

129 ms

bootstrap.min.css

bootstrap.min.css

211 ms

font-awesome.min.css

font-awesome.min.css

221 ms

main.css

main.css

125 ms

search.css

search.css

128 ms

jquery-3.3.1.min.js

jquery-3.3.1.min.js

220 ms

bootstrap.min.js

bootstrap.min.js

220 ms

ekko-lightbox.min.js

ekko-lightbox.min.js

125 ms

features.css

features.css

127 ms

panels.css

panels.css

209 ms

responsive.css

responsive.css

219 ms

Panels-ToggleNav.js

Panels-ToggleNav.js

219 ms

elastic-apm-rum.umd.min.js

elastic-apm-rum.umd.min.js

241 ms

pdb101Logo.png

pdb101Logo.png

72 ms

rcsb_logo.png

rcsb_logo.png

70 ms

pdb101-truncated.png

pdb101-truncated.png

70 ms

wwpdb-truncated.png

wwpdb-truncated.png

66 ms

emdb-truncated.png

emdb-truncated.png

70 ms

nakb-logo.png

nakb-logo.png

71 ms

foundation-truncated.png

foundation-truncated.png

85 ms

pdb-dev-logo.png

pdb-dev-logo.png

79 ms

model2.png

model2.png

87 ms

featured-resources.png

featured-resources.png

87 ms

train-resources-panel.png

train-resources-panel.png

86 ms

8eiq_homepage-homepage.jpg

8eiq_homepage-homepage.jpg

84 ms

prepare.png

prepare.png

87 ms

validate.png

validate.png

93 ms

deposit.png

deposit.png

94 ms

help.png

help.png

95 ms

advanced.png

advanced.png

96 ms

sequence.png

sequence.png

95 ms

structure-similaity.png

structure-similaity.png

96 ms

ligand.png

ligand.png

102 ms

sketch.png

sketch.png

104 ms

annotations.png

annotations.png

103 ms

new.png

new.png

104 ms

unreleased.png

unreleased.png

105 ms

statistics.png

statistics.png

106 ms

molstar.png

molstar.png

110 ms

pfv.png

pfv.png

112 ms

genome.png

genome.png

111 ms

alignment.png

alignment.png

112 ms

symmetry.png

symmetry.png

114 ms

quality.png

quality.png

114 ms

grouping.png

grouping.png

118 ms

mesh.png

mesh.png

120 ms

eppic.png

eppic.png

121 ms

external.png

external.png

120 ms

download-data.png

download-data.png

65 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

79 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

62 ms

download-sequence.png

download-sequence.png

72 ms

download-ligands.png

download-ligands.png

74 ms

download-archive.png

download-archive.png

74 ms

api.png

api.png

74 ms

train.png

train.png

67 ms

guide.png

guide.png

63 ms

motm.png

motm.png

62 ms

learn.png

learn.png

63 ms

teach.png

teach.png

84 ms

browse.png

browse.png

83 ms

news.png

news.png

85 ms

sciart.png

sciart.png

79 ms

9eun_assembly-1.jpeg

9eun_assembly-1.jpeg

77 ms

8oui_assembly-1.jpeg

8oui_assembly-1.jpeg

77 ms

8y1b_assembly-1.jpeg

8y1b_assembly-1.jpeg

81 ms

8j65_assembly-1.jpeg

8j65_assembly-1.jpeg

77 ms

8v2z_assembly-1.jpeg

8v2z_assembly-1.jpeg

79 ms

8hlj_assembly-1.jpeg

8hlj_assembly-1.jpeg

74 ms

8k3c_assembly-1.jpeg

8k3c_assembly-1.jpeg

71 ms

8y1g_assembly-1.jpeg

8y1g_assembly-1.jpeg

70 ms

8bwe_assembly-1.jpeg

8bwe_assembly-1.jpeg

72 ms

8qcu_assembly-1.jpeg

8qcu_assembly-1.jpeg

72 ms

screenshot2024-03-24at8.14.31pm.png

screenshot2024-03-24at8.14.31pm.png

71 ms

ptm-tn.png

ptm-tn.png

68 ms

models-square-icon-april2024.png

models-square-icon-april2024.png

67 ms

screenshot2024-03-24at7.09.52am.png

screenshot2024-03-24at7.09.52am.png

66 ms

screenshot2024-03-29at2.08.03pm.png

screenshot2024-03-29at2.08.03pm.png

66 ms

molstar-small-icon.png

molstar-small-icon.png

67 ms

cryoem-tn-mar12.png

cryoem-tn-mar12.png

68 ms

one-dep-hemoglobin.png

one-dep-hemoglobin.png

62 ms

screenshot2024-01-12at4.01.38pm.png

screenshot2024-01-12at4.01.38pm.png

61 ms

switchfromngl.png

switchfromngl.png

61 ms

annualreportcover_2023-tn.png

annualreportcover_2023-tn.png

60 ms

sars-cov-2-mrna-vaccine-apr24.png

sars-cov-2-mrna-vaccine-apr24.png

73 ms

dnaxtaltn.png

dnaxtaltn.png

70 ms

cellulose-synthase-tn.png

cellulose-synthase-tn.png

51 ms

2024q2-icon.jpg

2024q2-icon.jpg

51 ms

patterns-thumbnail.jpg

patterns-thumbnail.jpg

52 ms

casp16.gif

casp16.gif

52 ms

antigen-harvesting.gif

antigen-harvesting.gif

93 ms

nmrval032224-tn.jpg

nmrval032224-tn.jpg

57 ms

8eiq_homepage-tn.png

8eiq_homepage-tn.png

58 ms

2024q2-icon.jpg

2024q2-icon.jpg

57 ms

annualreportcover_2023.png

annualreportcover_2023.png

75 ms

Logo_Rutgers-2024.png

Logo_Rutgers-2024.png

44 ms

Logo_UCSD-navy.png

Logo_UCSD-navy.png

44 ms

Logo_SDSC-black.png

Logo_SDSC-black.png

43 ms

Logo_UCSF.png

Logo_UCSF.png

47 ms

Logo_wwpdb.png

Logo_wwpdb.png

50 ms

EMDataResourcelogo.png

EMDataResourcelogo.png

50 ms

jira-fdbck.js

jira-fdbck.js

12 ms

jira-fdbck.css

jira-fdbck.css

10 ms

ekko-lightbox.css

ekko-lightbox.css

12 ms

Accessibility Review

rcsb.org accessibility score

96

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Links do not have a discernible name

Best Practices

rcsb.org best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

rcsb.org SEO score

88

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rcsb.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Rcsb.org main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

rcsb.org

Open Graph data is detected on the main page of RCSB. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: